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Finding the Fourth Proportional to 206,732.20, 310,098.30 and 127,935.40

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Solution

The fourth proportional to 206,732.20, 310,098.30 and 127,935.40 is: 191,903.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,732.20 : 310,098.30 = 127,935.40 : x
  2. Step 2: Convert to fraction form
    206,732.20/310,098.30 = 127,935.40/x
  3. Step 3: Cross multiply
    206,732.20x = 310,098.30 × 127,935.40
  4. Step 4: Simplify right side
    206,732.20x = 39,672,550,049.82
  5. Step 5: Solve for x
    x = 39,672,550,049.82/206,732.20
  6. Step 6: Final answer
    x = 191,903.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.